/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package view.centerPanels;

import controller.Data;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;
import model.clasification.ClassificationIO;
import view.main.MainGUI;
import weka.classifiers.Evaluation;
import weka.classifiers.bayes.NaiveBayes;
import weka.core.Instances;
import weka.core.SerializationHelper;
import weka.core.converters.ConverterUtils.DataSource;
import weka.core.SerializationHelper;

/**
 *
 * @author Dusan Dudukovic
 */
public class ClassificationPnlCenterTrainNew extends javax.swing.JPanel {

    /**
     * Creates new form ClassificationPnlCenter2
     */
    private NaiveBayes nb;

    public ClassificationPnlCenterTrainNew() {
        initComponents();

        Instances data = Data.getInstance().getInstances();

        try {
            nb = new NaiveBayes();

            data.setClassIndex(data.numAttributes() - 1);

            Evaluation eval = new Evaluation(data);

            nb.buildClassifier(data);

            eval.evaluateModel(nb, data);

            jTextArea1.setText(eval.toMatrixString());

//                System.out.println(eval.toMatrixString());
        } catch (Exception ex) {
            JOptionPane.showMessageDialog(this, ex);
        }

        setSize(MainGUI.getInstance().getPnlCenter().getWidth(), MainGUI.getInstance().getPnlCenter().getHeight());
        setVisible(true);

    }

    public NaiveBayes getNb() {
        return nb;
    }
    
    

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jBtnSaveModel = new javax.swing.JButton();

        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane1.setViewportView(jTextArea1);

        jBtnSaveModel.setText("Save model");
        jBtnSaveModel.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBtnSaveModelActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jBtnSaveModel)
                        .addGap(0, 0, Short.MAX_VALUE)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 237, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 18, Short.MAX_VALUE)
                .addComponent(jBtnSaveModel)
                .addContainerGap())
        );
    }// </editor-fold>//GEN-END:initComponents

    private void jBtnSaveModelActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jBtnSaveModelActionPerformed
        try {
            String fileName = JOptionPane.showInputDialog(this, " Enter model name: ");

            boolean ok = ClassificationIO.updateTxtFile(fileName);
            
            if (!ok) {
                JOptionPane.showMessageDialog(this, "This name already exist.\nTry with another name.");
                return;
            }
            Instances instances = Data.getInstance().getInstances();
            
            ClassificationIO.writeInstanceObject(fileName, instances);
            ClassificationIO.writeNaiveBayesObject(fileName, nb);
            
            JOptionPane.showMessageDialog(this, "Successful");
        } catch (Exception e) {
            JOptionPane.showMessageDialog(this, e);
        }
    }//GEN-LAST:event_jBtnSaveModelActionPerformed

    private Object makeObj(final String item) {
        return new Object() {
            public String toString() {
                return item;
            }
        };
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jBtnSaveModel;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea jTextArea1;
    // End of variables declaration//GEN-END:variables
}
